Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Subclass Pulmonata Cuvier, 1814 - land snails and slugs see Order Pulmonata Cuvier, 1814
         Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
           Genus Achatina Lamarck, 1799
           Genus Arion Férussac, 1819
           Genus Bulimulus Leach, 1814
           Genus Cepaea Held, 1837
           Genus Haplotrema Ancey, 1881
           Genus Helix Linnaeus, 1758
           Genus Limax Linnaeus, 1758
           Genus Megaspira Lea, 1835
           Genus Pupilla Fleming, 1828
           Genus Succinea Draparnaud, 1801
           Genus Vertigo Müller, 1773